|School||Kaimei High School, Class 2-B (former)|
|Manga Debut||Chapter 105|
|Anime Debut||Episode 44|
Akina (秋奈) is Chiaki's best friend. She would bring Lucky Drop Candy to school every day, and the pair would each eat one after lunch. Her secret crush on Misato led to an argument, after which she and Chiaki stopped talking to each other and drifted apart. She ended up having to change schools due to her father's job, but the pair were able to reconcile before she left.
Akina has auburn hair style and brown eyes. Her hair is tied in a ponytail with a light blue band. There's nothing unique about her uniform.
- Chiaki Takahashi: She and Chiaki remain friends even after Akina transferred to another school. Their fondest memories are captured on a photo that is on their candy box.
- Misato: He is her secret crush, and Akina gets mad at Chiaki due to a misunderstanding when she suspects Chiaki is stealing Misato from her.